To whom it may concern: 8^)
In addition to the cybersecurity questionnaire, do you obtain or require proof of current cybersecurity and/or security awareness certification?
In addition to the onboarding process, we no longer renew or provide credentials for identified named consultants, release engineers, developers, etc to our environments without having a copy of their recently completed cybersecurity training certification or require they take one from our vendor (and pass on the cost or get a credit as required).
As risk and threat awareness spreads in the industry, this program has been working well and we haven't had to enforce having the service provider's employees take our own cybersecurity training vendor's course. We accept a screenshot by the identified security or staff manager (typically they provide a screenshot from a training portal for each identified contact).
Good luck. Larry